JPH02312114A - Dutomdtic fixed tewsion relaxind busing for variable panel,and its assembung metisod - Google Patents

Abstract

PURPOSE: To facilitate insertion into an assembled bushing and a cable hole by providing a key and a well-shaped recess and molding with each part thereof being opened. CONSTITUTION: An integrally molded plastic tension relaxing bushing has a main body that can be engaged through cable penetration. The main body has a first part 11 and a second part 12 that are coupled by a hinge 13, one part is provided with a key 14, a head 19, and grasping means, and the other part is provided with a head 23, a well-shaped recess 26, and grasping means 31. The first and second parts 11 and 12 can be engaged in the well-shaped recess 26, and when the key 14 holds a cable in the well-shaped recess 26 when the first and second parts 11 and 12 are keyed. Grasping means 31 of each part is engaged in a wall of a hole between the grasping means 31 and the head, and the key 14 can be coupled with a latch. Thereby, the cable can be easily inserted in the bushing.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application] The present invention is a one-piece molded plastic strain relief bushing in which the bushing is left in a flat, unobstructed, open configuration for easy handling of cables. The two bushing sections can then be closed and secured between each section, either by operation or automatically by the Fi machine. The assembled cable and bushing can then be engaged into the holes in the panel either by hand or by automated equipment without the need for special tools or highly skilled labor. The bushing.

It fits firmly into the hole with effective multi-point grip. The bushing is
Preferably, it is rectangular and adapted for use with rectangular holes.

[Conventional technology]

Millions of bushings per year on countless components,
Especially in the orovrded strain relief bushing technology used in electronic components, small changes in the structural components and their placement can mean significant overall savings in part cost or labor or both, along with the effectiveness of the bushing. There is sex. Traditional electronic components are labor intensive and expensive due to the assembly of cord sets for insertion into holes in panels or the insertion of cables, wires or long thin flexible members into bushings that require strain relief protection. It was for assembly.

Assembly often required manual assembly with special tools for the cable to be held in the bushing that was being snapped into the hole. A partial solution to the awkwardness of maintaining cables in bushings for insertion into holes has been to constrain the bushing components while keeping the cables engaged. Conventional bushings have generally been comprised of two parts that are themselves joined by some form of sea urchin wrapping. Urchin wrapping often complicated engaging the cable within the bushing.

U.S. Pat. No. 4,49,3,467 shows a complex prior art strain relief structure with a hinge joint adapted to secure a cable in a strain relief engagement within a bushing. The bushing also includes fingers that can engage the walls of the hole in the panel. The engagement of the cable in this case is not adapted to save effort in engaging the cable into the bushing, nor does it easily automate such engagement.

U.S. Pat. No. 4,117,998 discloses another prior art rectangular structure having a hinged arrangement of two juxtaposed parts and a hook engagement arranged to close the two parts of the bushing over the cable. It is a type bushing. This bushing cannot be snapped into the hole and cannot be easily adapted for simple or automated insertion of cables.

Another rectangular shaped bushing, similar to U.S. Pat. No. 4,117,998, has four stiffening pins that can be engaged within wells to stop rotation of the sections of the bushing. However, it is not configured to easily snap fit into the hole, and it has a separate hook and latch configuration on the outside of the well that requires a large bulk for the bushing.

Of course, there are lockable, cable-engaging fittings that can be snapped into holes, such as in U.S. Pat. No. 3,358,300. Such fittings are bulky, do not have the ability to relieve concentrated tension, and are not easily adapted for easy or automated insertion of cables into bushings.

British Patent Nos. 1,333,669 and 1,418,6
Rectangular bushings, such as those disclosed in No. 34, do not include keys and rely on separate hooks and latches to secure the bushings, and those bushings are apparently configured to snap into holes. do not have.

Additionally, U.S. Patent Nos. 3,290,430 and 346
No. 4659 has a strain relief bushing in which two parts of the bushing are held apart from each other by a strap. Although these bushings fit with a snap fit into the holes and even have the advantage of shouldered snap fingers, the bushing portion allows for easy or automated insertion of the cable and assembly of cables and bushings by unskilled personnel or without special tools. It cannot be easily adapted to all types of insertions.

Additionally, U.S. Patent No. 2,563,604 and No.
No. 74J86 is a hinge-held strain relief bushing. These bushings fit into the holes with a snap fit, but are not easily adapted for easy or automated insertion of cables and insertion of assembled cables and bushings by unskilled personnel or without special tools.

Additionally, U.S. Patent Nos. 2,895,003 and 3953
No. 665 and No. 4,568,047 are strain relief bushings in which each bushing section is retained by an end or head ferrule. Although the bushings fit into the holes with a snap fit, the bushing portions are not easily adapted for easy or automated insertion of cables. The ferrule is also a means of easily inserting the cable into the bushing.

Conventional effective strain relief bushings are generally two-piece pieces that are folded together with a strap or hinge and then inserted into a hole by hand or with a tool, holding the cable within the folded bushing. It was a partially configured bushing. The most effective bushing cables hitherto used generally passed through the bushing and were held by keys in a substantially vertical or horizontal U- or S-shape within a well-like recess. −
Once the bore is engaged, the bushing is typically held within a peripheral slot in the bushing or by fingers to lock it into the bore.

This type of bushing provided excellent strain relief and good grip in the hole, but generally required manual assembly or special tools to insert the bushing into the hole until the bushing was locked. This is a variant of this type of bushing.

There was a bushing with flexible fingers to grip the walls of the hole. The advantage of the flexible fingers was that they could be adjusted by selecting the shoulders to obtain a single bushing that could accommodate a selection of different wall thicknesses.

The use of fingers did not solve all the problems associated with being able to automate the process of assembling a cabled bushing into a hole, since a tool is generally required to hold the bushing with the cable inserted when inserting the bushing.

Some conventional bushings are hinge-jointed.

Nevertheless, those bushings do not solve the problem of being adapted to automate the insertion of cables into the bushing, and do not require skilled labor and usually special equipment to hold the bushing for insertion. Does not reduce tooling requirements.

[Problem to be solved by the invention]

One object of the present invention is to adapt it to automate the insertion of a cable into a bushing that shoulders both the key and the well, or to improve the manual insertion of the cable into the bushing. be. Another object of the invention is to provide a bushing which makes it possible to save labor costs in engaging the cable inside the bushing and in engaging the bushing with the cable into the hole. Another object of the present invention is to provide a bushing having a compact structure and sufficient strength within the compact structure.

Particularly given the need for automation, the bushing of the present invention is modular. In order to adapt to different applications, it is necessary to limit the number of dimensions of the bushing, taking into account the adaptation of the gripping fingers to several hole wall thicknesses.

[Means to solve the problem]

The present invention is a one-piece plastic strain relief bushing adapted for automatic operation. The bushing is molded with a key and a well, each part of which is open and juxtaposed. This bushing uses an interactive latch within the well to keep the cable within the well of the bushing. The cable can be fitted in the flat open bushing configuration either by hand or automatically by a machine and snap-locked between each closed bushing section. The shape of the present invention is configured to easily secure the cable in a tight fit. The compact bushing of the present invention also snaps into the hole with the cable engaged within the bushing. The cables in the bushing are engaged without the need for special tools or expensive skilled labor. The rectangular bushing of the present invention fits into the rectangular hole with an effective multi-point grip.

Another distinguishing feature of the present invention is that the latched bushing is made rigid by post-hole and pin-hole interactions arranged around the opposing surfaces of the two parts of the bushing. . The importance of this is that small hinges are fragile, especially when bushings are automatically attached to cables and may be left in place for the next insertion. Lateral or vertical movement of the two parts can fatigue the hinge and cause the bushing to become detached from the cable. The arrangement of the pillars and pins.

Effective in maintaining strength within a compact and effective configuration.

By making the shape of the bushing rectangular to be inserted into the rectangular hole, the wall of the hole can be firmly gripped by a simple configuration of multi-point gripping members separated from each other. Accordingly, a rectangular bushing within a rectangular bore is held securely within the bore by the multi-point gripping means of the present invention having three or more spaced apart gripping members. at least 1
A set of juxtaposed gripping members and a third or fourth gripping member securely hold the bushing against any pivoting into the bore.

In accordance with the present invention, an integrally molded plastic strain relief bushing has a body through which a cable can be engaged. The body has a first portion and a second portion connected by a single hinge. One part generally includes the key, the head and the gripping means. The other part is generally the head,
It is equipped with a well-shaped recess and a gripping means. The first and second portions are engageable within the well. The key is
When the first and second parts are locked, the cable is retained within the well. The gripping means of each part is engaged within the wall of the hole between the gripping means and the head. A key is engageable with the latch. The key may have a detent that engages the latch, the detent may be cammed to the latch, and the key may extend substantially across the width of the first portion.

The cable can be held folded into a substantially vertical or horizontal U or S shape within the well. There may be more than one hinge, including one hinge at the front of the bushing and one hinge at the rear of the bushing. The latch is
It may be resilient and flexible to engage the key.

The gripping means of the first part may be fingers extending substantially forwardly at an outward angle from the rear of the first part, the fingers being resiliently bendable. can. The gripping means of the second part can also be resiliently bent. These fingers are provided with at least one shoulder.

The gripping means of the second part may be elastically bendable and may also be provided with at least one scrap.

The bushing can assume a substantially rectangular shape when latched.

The first and second portions are capable of interacting to stiffen the bushing. This can be done with at least one set of interacting posts and holes or at least one set of interacting pins and holes or both.

The gripping means of the first portion may be substantially adjacent either end of the key and the gripping means of the second portion may be below the well.

The bushing can form a substantially rectangular shape when locked and the gripping means of the first and second parts can form a substantially triangular shape when engaged. The bushing is engageable in the wall of the hole between the gripping means of the first and second parts and the head of the first and second parts. The second part of this bushing may be provided with several gripping means 16 and there may be support means interacting between the first and second parts, and the key has a number of gripping means. Interacting support means may also be provided. The support means may be provided on all keys with detents that interact with said second part, and may be provided with projections on said second part that can rotatably interact with the support detents of the key. .

The head of one part may be provided with a cover that folds back the cable before entering the bushing.

The keys may be thin.

The method of assembling a strain relief bushing by engaging a cable in a hole includes the steps of providing an integrally molded plastic strain relief bushing into which the cable is received.

A first part and a second part are provided with a hinge for said first part and said second part. One part is the key,
A head and gripping means are provided. The other part is provided with a head, a well and gripping means. A latch is provided within the well. The latch.

The first and second portions are configured to engage the first and second portions.

The key retains the cable within the well when the latch is engaged. The gripping means of each part engages the wall of the hole between the gripping means and the head. a cable is installed through the body, the first portion and the second portion are engaged;
The cable is locked and retained within the wall of the bushing by means of a key. The key may be engageable with a latch and a detent that engages the latch. The detent may be provided with means for camming into contact with the latch, and the key may be provided substantially across the width of the first portion.

Under this method, the cable is l! The actual vertical line may be placed in a horizontal U-shape or S-shape and corrugated into a well-shaped recess. More than one hinge may be provided, including one hinge at the front of the bushing and one hinge at the rear of the bushing. A latch may be provided that is resilient and deflects to engage the key.

The gripping member of the first part is provided with fingers which may extend substantially forwardly at an angle outwardly from the rear of the first part, so as to enable them to be resiliently deflected. You can also do this. The gripping means of the second part may also include resiliently deflectable fingers.

A bushing may be provided that assumes a substantially rectangular shape when the latch is engaged.

The first and second portions may be enabled to interact to rigidify the bushing. This can be done by providing at least one set of interacting posts and holes or at least one set of interacting pins and holes or both.

The gripping means of the first part may be provided substantially adjacent either end of the key and the gripping means of the second part may be provided below the well.

The bushing may be configured to assume a substantially rectangular shape when engaged with the latch, and the gripping means of the first and second portions may assume a substantially rectangular shape when engaged. The bushing may be configured to engage the wall of the bore between the gripping means of the first and second parts and the heads of the first and second parts. A bushing can be engaged within the hole.

The second part of the bushing may be configured to include a plurality of gripping means and the key may be configured to include support means that can be interacted with the second part. The support means may be configured to include a detent on the key. The detent can interact with the second portion.

The second portion may include a projection that can rotatably interact with a detent on the key.

〔Example〕

The integrally molded plastic strain relief bushing 10 includes a first
A portion 11 and a second portion iz6 are provided. The first part 11 and the second part 12 are connected by a number 13. In the first part 11 there are keys 14. The key 14 has a detent 15 with a cam surface 16. There is also a pair of elastically deflectable fingers 17 on either side of the first part.

Each finger 17 has a shoulder 18. In the first part there is a head 19. Head 19 has a cutout forming an opening 20 . At the rear end of the first part there is another cutout forming an opening 21t.

There is a pair of pins 22 in the first part 11 .

The second part 12 has a head 23 with an opening 24 on the front side.
There is. The second part has another opening 21 at the rear of the body.
, 5. The openings 24 and 25 are located in the second part 1
This is the earthen wall of a well-shaped depression 26 in the main body of the building.

The head 23 has a hole 27 formed to receive the pin 22f. The head 23 also includes a post 28t- configured to receive the aperture 20 in the first portion 11. At the rear of the second part there is also another post 29 which receives the opening 21 of the first part 11. The second part comprises a latch 30i configured to interact with the detent 15 of the key 14. Resiliently flexible grasping fingers 31 extend from the rear of the second portion 12. Grasping fingers 31 are attached to shoulders 32, which can best be seen in FIG.
It has a temperature of ℃. The second portion 12 has a reinforcing wall 33 adjacent one end of the key 14 . There is a molded core hole 34 surrounding the latch 30. The molded core hole 34 is created by inserting a molded core to mold the latch 30 when molding the bushing.

Another embodiment of the present invention is an integrally molded plastic strain relief bushing 40, as shown in FIG. An integrally molded plastic strain relief bushing 40 includes a key 1 having a second detent 41 at its other end.
There are 4. The second detent 41 includes a cam surface 42 configured to engage the support projection 43 . Support projection 43 has a cam surface 44 that interacts with cam surface 42 .

FIG. 7 is a detail of another embodiment of a one-piece plastic strain relief bushing 50 with two spaced apart gripping members 51 with shoulders 52. FIG.

Another embodiment of the present invention is an integrally molded plastic strain relief bushing 60, as shown in FIG. The integrally molded plastic strain relief bushing 60 is
With a cup (-61) attached to the head 23, this cover bends the cable 90 as it enters the cup (-61) of the integrally molded plastic strain relief bushing of the present invention.

Another embodiment of the present invention is an integrally molded plastic strain relief bushing 65, as shown in FIG.

The integrally molded plastic strain relief bushing 65 includes fingers 17 extending from the sides of the second portion 120.

Another embodiment of the present invention is an integrally molded plastic strain relief bushing 70, as shown in FIG. Integrated molded plastic strain relief pusher〉゛Gua 0
is equipped with narrow keys 71. As can be seen in phantom, the cable can be held in strain-relieving engagement within the well 26 between the narrow key 71 and the reinforcing wall 33.

In use, the integrally molded plastic strain relief bushing is in a flat, open position with the first portion 11 and the second portion 12 joined in one plane by a hinge 13. In this configuration, the key 14 holds the cable entirely in the second part with the first part rotatable so as to hold the cable in a well-like U-shape or S-shape in the hole 26. Can be operated or placed automatically. A detent 15 integral with the key 14 engages the latch 30 to retain the cable as a complete cord set within the integrally molded plastic strain relief bushing 10, ready for installation.

This step can, of course, be done manually, but
In any case, the completed cord sets can be stored separately until they are ready for engagement.

When the first part 11 is locked with the second part, the columnar part 28
．． 29 is engaged into the opening 20.21 and the pin 22 is engaged into the hole 27.

This engagement holds the integrally molded plastic strain relief bushing 10 closed against rotational movement of the first portion 11 relative to the second portion 12, so that the hinge 13 is in particular connected to the integrally molded plastic strain relief bushing. before inserting it into the hole, there is little chance that it will fatigue and break.

Upon insertion, the fingers 17 flex outwardly until the shoulders 18 engage the inner wall of the hole. As can be seen in FIGS. 4 and 5, the walls of the hole are engaged between the shoulder 18 and the head 19. As shown in FIG.
The grasping finger 31 with the shoulder 32 of 2 is also the grasping finger 31
and head 230 to engage the wall of the hole.

The engagement within the bore of the integrally molded plastic strain relief bushing 10 is a tight engagement due to the configuration of the gripping fingers 31 to prevent pivoting of the integrally molded plastic strain relief bushing or loosening of the integrally molded plastic strain relief bushing within the bore. Prevent everything. Key 14 indicates that -
Once connected to the latch 30, it retains the cable. The integrally molded plastic strain relief bushing 10 is reinforced in strength by a reinforcing wall 33 within the second portion 12.

Often more than one strain relief is engaged in the first part 11
is obtained by the support it receives from the inner wall of the hole. The tension exerted on the cable acts as an additional strain relief as it pulls not only against the key 14 and latch 30, but also against the inner wall of the hole.

The stepped shoulder 18 is adapted to the selection of the wall thickness of the panel. This limits the number of different bushings that need to be provided.

Molded core hole 34 is for configuration purposes only and has no other function with respect to integrally molded plastic strain relief bushing 10.

The key 14 is important in that it maintains the cable within the well 26 while the detent 15 catches the latch 30 keeping the first part 11 engaged with the second part 12. serves a dual function. The structural dual function of the key 14 with the stop 15 (which engages the launch 30) is to retain the cable secured within the integrally molded plastic strain relief bushing, and the integrally molded plastic strain relief bushing 10 is inserted into the hole. provides the necessary strength to hold the cable when engaged. This configuration provides the one-piece plastic strain relief bushing 10 with maximum strength with minimal bulk.

The reinforcing wall 33 strengthens the walls of the well-shaped recess 26 in the second portion 12 and prevents the latches 30 of the detent 15 from swelling when the wall swells.
Helps prevent loosening of the engagement.

In FIG. 6, an integrally molded plastic strain relief bushing 40 is provided with a key 14 having a second
There is a detent 41. The second detent has a second
There is a camming surface 42 that engages a support projection 43 projecting from the wall of the portion 12 .

The support projection 43 has a cam surface 44 . Therefore, the first
When the section 11 is closed by rotating on the hinge 13, the second detent 41 with the cam surface 42
The cam is coupled to the cam surface 44 of the support protrusion 43, and the support protrusion 43
engage with. This engagement involves the detent 15 and the latch 30.
The second layer is used as an additional protection to prevent it from swelling and falling off.
Provides full structural strength in both opposing walls of section 12.

The fingers 17 of the first part engage the walls of the bore at the top of the integrally molded plastic strain relief bushing 10, and the fingers 17 of the first part
The gripping fingers 31 on the underside of the portion 12 engage the walls of the bore at the center of the integrally molded plastic strain relief bushing 10 such that the walls of the bore are located between the fingers 17 and the paddle 19 and between the gripping fingers 31 and the bore walls. It is held firmly between the heads 23. In this case, there is little chance that the integrally molded plastic strain relief bearing 0 will pivot within the hole. To further increase the strength of retaining the integrally molded plastic strain relief bushing 10 engaged within the bore, an alternative gripping member 51 as shown in FIG. This is achieved by using, in this case, two gripping members 51 extending from the bottom of the second part 12.

In FIG. 8, an integrally molded plastic strain relief bushing 60 is attached to the head 23 with a cover 61fr.

I'm wearing it. Instead of the cables engaged with integrally molded plastic strain relief bushing 60 passing straight through integrally molded plastic strain relief bushing 6o, they enter cover 61 and make a 9♂ turn to pass through integrally molded plastic strain relief bushing 60i.

As shown in FIG. 9, the fingers 17f.

It can be placed on the second part 12 to properly grip the walls of the hole.

Connect the cable to the narrow key 7 as shown in Figure 10.
1 and can thus be engaged and held in a substantially U- or S-shape in a strain-relieving engagement.

〔Effect of the invention〕

The unexploded FiA is a structurally simple strain relief bushing with a novel lock in the well-shaped recess. It makes it possible to secure fastening, save dimensions, maximize strength and facilitate the insertion of assembled bushings and cables into holes.

The open side-by-side configuration of the two parts of the bushing of the present invention improves economy when assembling the cable into the bushing, either manually or automatically by machine.

The gripping means of the bushing of the present invention is configured to match a selection of hole wall thicknesses, thereby reducing the number of pusher configurations that need to be provided for different applications.

The bushing of the invention prevents rotational movement of the two parts and
As a result, a stiffening device 1 is provided which specifically protects the assembled bushing and cable hinges from fatigue and damage before engaging the hole, but the bushing is not inserted into the hole after the cable is assembled to the bushing. Preventing and protecting against rotation is particularly effective in automated assembly equipment because there is a time delay between engagement and manual handling is often required.

[Brief explanation of drawings]

FIG. 1 is a top view of the one-piece plastic strain relief bushing of the present invention; FIG. 2 is a top view of the one-piece plastic strain relief bushing of the present invention;
3 is a cross-sectional view of FIG. 2 taken along line 3--3, and FIG. 4 is shown engaged within a hole in a panel. 2, and FIG. 5 is a partially cut away left side cross-sectional view of the integrally molded plastic strain relief bushing of FIG. 4 shown engaged with a hole in the panel; , FIG. 6 is a cross-sectional view of another embodiment of an integrally molded plastic strain relief bushing including support means for interaction with said second portion in the key, and FIG. FIG. 8 shows a cut-away detail of a front elevational view of a one-piece plastic strain relief bushing of the invention with a gripping member; FIG. FIG. 9 is a plan view of another embodiment of the one-piece plastic strain relief bushing of the present invention, complete with flexible fingers extending from opposite sides of the second section; FIG. FIG. 10 is a plan view of one embodiment of the one-piece plastic strain relief bushing of the present invention including a narrowed key. 11-1 first part, 12-1 second part, 13-1 hinge. 14--Key, 15--Finger-shaped member, 18--Scramble, 19.23--Head, 20.27--
Opening, 22--pin, 26--well-shaped recess, 28.2
9--one columnar part, 30--latch, 31--one grasping finger, 3
3-1 reinforced wall, 61-1 cover. FIG.9

Claims (1)

Claims: 1. A device configured to receive a cable passing therethrough, comprising a first portion and a second portion, the first portion and the second portion being joined by hinge means. , a body comprising a key, a head and a gripping means in one part and a head, a well-shaped recess and a gripping means in the other part; latching means configured to engage a portion of each portion, the key being configured such that the latching means, when latched, retains a cable within the well; an integrally molded plastic strain relief bushing, the means being configured to engage a wall of the bore between the gripping means and the head; 2. The strain relief bushing of claim 1, wherein said key is engageable with said latching means. 3. The key comprises a detent, and the detent is configured to engage the latching means.
strain relief bushings as described in . 4. The strain relief bushing of claim 3, wherein said detent includes camming means. 5. The strain relief bushing of claim 1, wherein said key substantially traverses the width of said first portion. 6. The strain relief bushing of claim 1, wherein the cable engaged within the well is pleated in a substantially U-shaped or S-shaped manner. 7. The strain relief bushing of claim 1, wherein said hinge means comprises a plurality of hinges. 8. The strain relief bushing of claim 1, wherein said hinge means comprises one hinge at the front of said bushing and one hinge at the rear of said bushing. 9. The strain relief bushing of claim 2, wherein said latching means is configured to resiliently deflect to engage said key. 10. The strain relief bushing of claim 1, wherein said first portion gripping means are fingers. 11. The strain relief bushing of claim 10, wherein said fingers extend substantially forwardly and angularly outward from a rear portion of said first portion. 12. The strain relief bushing of claim 11, wherein the fingers are configured to be elastically deflectable. 13. A strain relief bushing according to claim 12, wherein said second portion gripping means are fingers. 14. The strain relief bushing of claim 13, wherein the fingers of the second portion are configured to be elastically deflectable. 15. The strain relief bushing of claim 14, wherein the first and second portion fingers include at least one shoulder for at least one finger. 16. The strain relief bushing of claim 1, wherein said second portion gripping means are fingers. 17. The strain relief bushing of claim 16, wherein the fingers are configured to be elastically deflectable. 18. The strain relief bushing of claim 17, wherein the fingers include at least one shoulder. 19. The strain relief bushing of claim 1, wherein said bushing creates a substantially rectangular shape when said latching means is engaged. 20. The strain relief bushing of claim 1, wherein said first and second portions include interactive stiffening means. 21. The strain relief bushing of claim 20, wherein said stiffening means comprises said at least one set of interacting posts and holes. 22. The strain relief bushing of claim 20, wherein said stiffening means comprises said at least one set of interacting pins and holes. 23. The strain relief bushing of claim 22, wherein said stiffening means comprises said at least one set of interacting posts and holes. 24. The strain relief bushing of claim 1, wherein said first portion gripping means are substantially adjacent opposite ends of said key. 25. The strain relief bushing of claim 1, wherein said second portion gripping means is below said well. 26. The strain relief bushing of claim 25, wherein said first portion gripping means are substantially adjacent opposite ends of said key. 27. The strain relief bushing of claim 26, wherein the bushing creates a substantially rectangular shape when the latching means is engaged. 28. The strain relief bushing of claim 27, wherein the gripping means of the first and second portions create a substantially triangular shape. 29. The bushing of claim 28, wherein the bushing is configured to engage a wall of the hole between the gripping means of the first and second parts and the heads of the first and second parts. Strain relief bushing. 30. The strain relief bushing of claim 1, comprising a plurality of said second portion gripping means. 31. The strain relief bushing of claim 1, further comprising support means interacting between said first portion and said second portion. 32. The strain relief bushing of claim 1, wherein said key comprises support means for interacting with said second portion. 33. A strain relief bushing as claimed in claim 32, wherein said support means comprises a detent on said key that interacts with said second portion. 34. The strain relief bushing of claim 33, wherein said support means comprises a protrusion on said second portion. 35. The strain relief bushing of claim 34, wherein the detent and projection are rotatably interoperable. 36. The strain relief bushing of claim 1, further comprising a cover on the head of one section, said cover configured to bend the cable prior to entering the body of said integrally molded plastic strain relief bushing. 37. The strain relief bushing of claim 1 comprising a narrow key. 38. providing an integrally molded plastic strain relief bushing; providing the strain relief bushing with a body; configuring the body to receive a cable therethrough; providing a hinge means on the first and second parts; providing a key, a head, and a gripping means on one part; a head, a well-shaped recess, and a gripping means on the other part; providing means for gripping the portions; providing latching means within the well; configuring the latching means to engage the first and second portions; configuring the cable to be retained within the well when the latching means is engaged; and engaging the gripping means of each portion with the wall of the hole between the gripping means and the head. placing a cable through the body; juxtaposing the first portion and the second portion; and locking the first portion and the second portion. a method of assembling a cable-engaged strain relief bushing in a bore, the method comprising: engaging the cable thereby securing and retaining the cable within the well. 39. The method of claim 38, including the step of providing said key engageable with said latching means. 40. The method of claim 38, including the step of providing the key with a detent and configuring the detent to engage the latching means. 41. The method of claim 40, including the step of providing camming means on the detent. 42. The method of claim 38, including the step of providing the key substantially across the width of the first portion. 43. The method of claim 38, comprising the step of crimping the cable engaged within the well into a substantially U- or S-shape. 44. The method of claim 38, including the step of providing a plurality of hinges on the hinge means. 45. The method of claim 38, including the step of providing the hinge means with one hinge forward of the bushing and one hinge behind the bushing. 46. The method of claim 38, including the step of configuring the latch to be elastically deflectable to engage the key. 47. The method of claim 38, including the step of providing fingers on the gripping means of the first portion. 48. The method of claim 47, including the step of configuring the fingers to extend substantially forwardly at an angle outward from a rear portion of the first portion. 49. The method of claim 48, including the step of configuring the fingers to be elastically deflectable. 50. The method of claim 38, including the step of providing a finger on the gripping means of the second portion. 51. The method of claim 50, including the step of: 51 configuring the fingers to be elastically deflectable. 52. The method of claim 51, including the step of providing the fingers of the first portion and the second portion with at least one shoulder for at least one finger. 53. The method of claim 38, including the step of providing a finger on the gripping means of the second portion. 54. The method of claim 53, including the step of configuring the fingers to be elastically deflectable. 55. The method of claim 54, including the step of providing at least one shoulder on the finger. 56. The method of claim 38, including the step of causing the bushing to form a substantially rectangular shape when the latch is engaged. 57. The method of claim 38, comprising the steps of: providing interacting stiffening means on the first and second portions. 58. The method of claim 57, including the step of providing at least one set of interacting posts and holes in the rigidizing means. 59. The method of claim 57, including the step of providing at least one set of interacting pins and holes in the rigidizing means. 60. The method of claim 59, including the step of providing at least one set of interacting posts and holes in the rigidizing means. 61. Claim 3 including the step of providing gripping means of said first portion with gripping means substantially adjacent opposite ends of said key.
8. The method described in 8. 62. Claim 3, further comprising the step of providing the second portion with gripping means for the second portion below the well-shaped recess.
8. The method described in 8. 63. The method of claim 62, including the step of causing said first portion gripping means to be a first portion gripping means substantially adjacent opposite ends of said key. 64. The method of claim 63, including the step of causing the bushing to form a substantially rectangular shape when the latch is engaged. 65. A method as claimed in claim 64, including the step of: causing said first and second portion gripping means to create a substantially triangular shape. 66. Configuring the bushing to engage a wall of the hole between the gripping means of the first and second parts and the heads of the first and second parts. the method of. 67. The method of claim 38, including the step of: engaging the bushing in a hole. 68. The method of claim 38, further comprising the step of providing a plurality of said second portion gripping means. 69. Claim 38, comprising the steps of providing support means on the key and causing the key to interact with the second portion.
The method described in. 70. The method of claim 69, comprising the steps of: causing a detent on the key to be the support means; and causing the key to interact with the second portion. 71. The method according to claim 70, comprising the step of: 71, making a protrusion on the second portion the support means. 72. The method of claim 71, including the step of rotatably interacting the detent and the protrusion.